Vertically sensitive outdoor lighting controls

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United States of America Patent

PATENT NO 4968884
SERIAL NO

07336266

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Abstract

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In the disclosed outdoor lighting control, angular reflectors (52) direct vertical light passing through a translucent dome (38) onto a vertically oriented photocell (24) and a rigid vertically-adjustable sheet (54) between the photocell and the reflectors regulates the operating point of the photocell. The backs of the reflectors, and a socket (14) projecting vertically from a base (12) under the dome, shield the vertical photocell from horizontal light.

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Patent Owner(s)

Patent OwnerAddress
SIGMA INSTRUMENTS INC A CORP OF MA90 LIBBEY PARKWAY WEYMOUTH MA 02189

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yeh, Thomas South Weymouth, MA 42 360

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